Summary
Crosses were made between members of the two West African okra types ‘Soudanien’ and ‘Guineen’. All crosses succeeded in both directions and the F1 plants which showed hybrid vigour for plant stature were partially sterile. Cytological observations of the F1 plants revealed abnormal meiosis which resulted in the production of microspores of variable sizes. The frequency of viable pollen (as indicated by acetocarmine staining) was low in the hybrids: 35.80% (U.I.92× U.I.313) and 39.41% (1bk-1×U.I.215). The number of seeds produced per fruit was low in the hybrids and only a few of these seeds are viable. The possibility of gene transfer between the two okra types was discussed.
Similar content being viewed by others
References
Chheda HR, Fatokun CA (1982) Numerical analysis of variation patterns in okra (Abelmoschus esculentus (L.) Moench). Bot Gaz (Chicago) 143:253–261
Cockerham LE, Galletta GJ (1976) A survey of pollen characteristics in certain Vaccinium Species. J Am Soc Hortic Sci 101:671–676
Duck BN (1964) Cytology and morphology of F1 and F2 progeny of Vicia sativa × V. angustifolia. PhD Thesis, Auburn University
Gibson PB, Chen C, Gillingham JT, Barnett OW (1971) Interspecific hybridization of Trifolium uniflorum (L). Crop Sci 2:895–899
Njoku E (1958) The photoperiodic response of some Nigerian plants. J West Afr Sci Assoc 4:99–112
Rubaihayo PR, Gumisiriza G (1978) The causes of genetic male sterility in 3 soybean lines. Theor Appl Genet 53:257–260
Siemonsma JS (1982) West African Okra. Morphological and cytological indications for the existence of a natural amphidiploid of Abelmoschus esculentus (L.) Moench and A. manihot (L) Medikus. Euphytica 31:241–252
Author information
Authors and Affiliations
Additional information
Communicated by J. MacKey
Rights and permissions
About this article
Cite this article
Fatokun, C.A. Wide hybridization in okra. Theoret. Appl. Genetics 74, 483–486 (1987). https://doi.org/10.1007/BF00289826
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00289826